Nathaniel foust



N. FOUST. PROCESS 0F MAKING TUYERBS. 110.417,16). Patented Dec. 10, 1889.

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-..MVL Q (No Model.)

-UNITED STATES PATENT OFFICE.

NATHANIEL FOUST, OF LOCK I-IAVEN, PENNSYLVANIA, ASSIGNOR TO NEWTON lV. FREDERICKS, OF SAME PLACE.

PROCESS OF MAKING TUYERES.

SPECIFICATION forming part of Letters Patent No. 417,163, dated December 10,- 18829.

Application filed May 22, 1889. -Serial No. 311,661. (No model.)

To all 10700111, it may concern.:

Be it known that I, NATHANIEL' FOUsT, a citizen of the United States, residing at Loek Haven, in the countyof Clinton and State of Pennsylvania, have invented certain new and useful Improvements in Processes for Making Tnyeres; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This' invention embodies a process for making tu yeres and it consists in the method and manner of operation whereby the clay or other suitable earth is introduced into t-he former or mold pierced with holes longitudinally, means for keeping the holes open, and means for protecting the tuyere until finally set and hardened, all as will now be more fully set out and explained and embodied in the claim.

To illustrate my said process I will now refer to the accompanying drawings, in which- Figure l is a side view of an apparatus that can be used in carrying out my said process. Fig. 2 is a side elevation of a case which is to be inserted into the mold and constitute the means for holding the clay or other earth or material while the tuyere is being formed and of holding it until it has beenset or hardened. Fig. 3 is a detail of the rods used to keep the holes made through the tuyere when in the mold open or perfectly straight until the tuyere has hardened. Fig. Ll is a longitudinal central section of the tuyere after it has been made and is ready for use. Fig. 5 is a detail in longitudinal section, showing the metal case inside the mold. Fig. Gis a cross-section of the mold with the ease inside.

In carrying out my said invention a case A is placed inside the mold B. The mold is then iilled with the material of which the tuyere is to be made by means of needles C, which are attached at one end to a head F, and operated by the screws G, gearing H, and pulleys I, moved by any suitable power. This material is pierced from end to end with as many holes e as may be desired. Then this has been properly accomplished, the case A is withdrawn from the mold and set on its end, and then each of the holes through the green or freshly-made tuyere is filled with a wire or rod D of proper size and length. The tuyere E is then left to harden., Then it has duly hardened, it will be found that the tuyere is plumb and straight inside and out. and all its lines are true, and especially that the longitudinal holes are straight, which is a matter of very large consequence in this class of devices.

The tuyere so made is of very great durability and is very effective in use. The process is very simple and is very easily carried out.

It is not absolutely necessary that the machine should be the exact counterpart of what is now shown; but the essential points of the process are the use of the case to insert into the mold and constitute a means for holding the clay or other earth while it is being' shaped, and also to hold it while being pressed, pierced, and molded, and after being removed from the mold a means to preserve its shape in all its integrity, and the rods which serve to keep the shape of the longitudinal holes through the tuyere.

I claim as my invention- The within-described process for making tuyeres, consisting in placing in any desired way the material of which the tuyere is to be made in a removable casing inside the mold, piercing the clay or earth to form the usual longitudinal openings in the tuyere, and then withdrawing the ease from the mold and plac 8 5 ing rods in said openings to keep them true while the tuyere is drying or hardening, all substantially as set forth. k

In testimony whereof I affix my signature in presence of two witnesses.

NATHANIEL FOUST.

lVitnesses:

B. F. GEARY, J. T. FREDERIcKs. 

